In passive sentences, the action, event or process is more important than who or what does the action.:
Fruit is picked in the autumn.
If we want to mention the 'person doing the action', we use by:
I was robbed last night by a man in a dark jacket.
Passive is also used when we do not know who or what does the action.
A bike was stolen from the school last night.
In journalism and science, the passive is also commonly used to sound more formal and objective.
It was reported that a new vaccine has been developed for the virus.
Use the form to be to go from active to passive plus the past participle
(NOT CORRECT) She was arrived.
Correct the mistakes in the text below.
Rewrite the sentences below to make them more formal, beginning with the words and phrases in bold.